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More about the Oklahoma 511-Pckt
Tax Return

We last updated Oklahoma 511-Pckt in January 2019 from the Oklahoma Tax Commission. This form is for income earned in tax year 2018, with tax returns due in April 2019. We will update this page with a new version of the form for 2020 as soon as it is made available by the Oklahoma government.

Disclaimer: While we do our best to keep 511-Pckt up to date and complete on Tax-Brackets.org, we cannot be held liable for errors or omissions. Is this form missing or out-of-date? Please let us know so we can fix it!